Questions tagged as 'android'

Tagged questions
2
answers

You do not see anything again

I'm trying to use Android Studio, but fuck for everything. I put two buttons and you can not see anything. CLASS package com.example.jhon.myapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import andr...
asked by 11.09.2018 / 10:00
2
answers

Read long text with voice on Android using TextToSpeech

I am implementing text reading with voice in
asked by 11.10.2017 / 16:32
3
answers

Create Chron on Android

I'm trying to make a cron run every X time in the system android tag to call a service that I have made. The features of cron that I want to do are the following: run independently if the Application is running or not (partially d...
asked by 27.10.2016 / 10:00
3
answers

Know when the App is launched for the first time on Android

How can you tell if it's the first time the app starts? It would be interesting, in the case that the user updates the application is detected as new or update.     
asked by 27.01.2016 / 21:15
1
answer

Read data from bluetooth device

I am developing an Android application and I implemented a bluetooth bar code reader, the problem is that I could not get to read what the device delivers. In my class I can see and get the devices associated with my phone but I can not read wha...
asked by 19.02.2016 / 13:26
2
answers

APK not compatible with my Android devices

I have four updates of one of my apps modifying the AndroidManifest.xml for if I get the tab "application compatible with all your devices" and I'm not successful the app's tab . I have the following devices EEpad TF101 (ICE_CREAM...
asked by 12.04.2016 / 17:55
10
answers

How do I get a JSon from AsynTask on android?

This is my function: public class JSONRequest extends AsyncTask <String, Void, JSONObject>{ private JSONCallback activity; public JSONRequest(JSONCallback activity){ this.activity = activity; } @Override protected JSONObject doInB...
asked by 19.10.2016 / 03:42
2
answers

Save images on sqlite android

Hello, I am trying an example to save photos in sqlite, I have managed to show an image of the gallery, but I do not know how to save it. Thanks. //cargar foto en imagenView @Override protected void onActivityResult(int requestCode, int result...
asked by 30.05.2017 / 13:22
1
answer

Android 6.0 does not show any errors Huawei logcat

yesterday I updated the version of my huawei p8 to android 6.0 and today I find that the error messages are not shown in the logcat, it only shows me this message when an error occurs: [ 06-06 09:02:00.624 2929: 2929 E/ ] process...
asked by 06.06.2016 / 10:10
1
answer

What is the difference between enum and sealed in Kotlin?

What is the difference between enum (Enum Classes) and sealed (Sealed Classes). And when it is advisable to use them. enum class Direction { NORTH, SOUTH, WEST, EAST } sealed class Direction { class NORTH class SOUTH...
asked by 24.09.2018 / 22:41